Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://go.dev/cl/775960 Patch
- https://go.dev/issue/79282 Issue Tracking, Patch
- https://groups.google.com/g/golang-announce/c/OrmQE_Yp5Sc Mailing List, Release Notes, Vendor Advisory
- https://pkg.go.dev/vuln/GO-2026-5856 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.3 · golangNVD modified 2026-10-25 17:10
Affected (CPE criteria) 2
cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*cpe:2.3:a:golang:go:1.27:rc1:*:*:*:*:*:*
References 4
- https://go.dev/cl/775960 Patch
- https://go.dev/issue/79282 Issue Tracking, Patch
- https://groups.google.com/g/golang-announce/c/OrmQE_Yp5Sc Mailing List, Release Notes, Vendor Advisory
- https://pkg.go.dev/vuln/GO-2026-5856 Vendor Advisory